@extends('layouts.app')

@section('title', 'Tagihan')

@section('content')
<div class="container-fluid px-4">
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h1 class="h3 mb-1">Tagihan</h1>
            <nav aria-label="breadcrumb">
                <ol class="breadcrumb mb-0">
                    <li class="breadcrumb-item"><a href="{{ route('dashboard') }}">Dashboard</a></li>
                    <li class="breadcrumb-item active">Tagihan</li>
                </ol>
            </nav>
        </div>
        <div class="d-flex gap-2">
            <button type="button" class="btn btn-outline-success" data-bs-toggle="modal" data-bs-target="#modalAutoGenerate">
                <i class="bi bi-robot me-1"></i> Generate Otomatis
            </button>
            <button type="button" class="btn btn-outline-secondary" data-bs-toggle="modal" data-bs-target="#modalGenerateBulk">
                <i class="bi bi-lightning me-1"></i> Generate Massal
            </button>
            <a href="{{ route('invoices.create') }}" class="btn btn-primary">
                <i class="bi bi-plus-circle me-1"></i> Buat Tagihan
            </a>
        </div>
    </div>

    @if(session('success'))
        <div class="alert alert-success alert-dismissible fade show" role="alert">
            <i class="bi bi-check-circle me-1"></i> {{ session('success') }}
            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
        </div>
    @endif
    @if(session('error'))
        <div class="alert alert-danger alert-dismissible fade show" role="alert">
            <i class="bi bi-exclamation-circle me-1"></i> {{ session('error') }}
            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
        </div>
    @endif

    {{-- Card Statistik --}}
    <div class="row g-3 mb-4">
        <div class="col-6 col-md-3">
            <div class="card border-0 bg-primary text-white shadow-sm">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <i class="bi bi-receipt fs-2 opacity-75"></i>
                        <div>
                            <div class="small opacity-75">Total Tagihan</div>
                            <div class="fw-bold fs-5">{{ $stats['total'] ?? 0 }}</div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="col-6 col-md-3">
            <div class="card border-0 bg-warning text-dark shadow-sm">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <i class="bi bi-clock fs-2 opacity-75"></i>
                        <div>
                            <div class="small opacity-75">Belum Dibayar</div>
                            <div class="fw-bold fs-5">{{ $stats['unpaid'] ?? 0 }}</div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="col-6 col-md-3">
            <div class="card border-0 bg-danger text-white shadow-sm">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <i class="bi bi-exclamation-triangle fs-2 opacity-75"></i>
                        <div>
                            <div class="small opacity-75">Jatuh Tempo</div>
                            <div class="fw-bold fs-5">{{ $stats['overdue'] ?? 0 }}</div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="col-6 col-md-3">
            <div class="card border-0 bg-success text-white shadow-sm">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <i class="bi bi-check-circle fs-2 opacity-75"></i>
                        <div>
                            <div class="small opacity-75">Terbayar Bulan Ini</div>
                            <div class="fw-bold fs-5">{{ $stats['paid_this_month'] ?? 0 }}</div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    {{-- Filter --}}
    <div class="card shadow-sm mb-4">
        <div class="card-body">
            <form method="GET" action="{{ route('invoices.index') }}">
                <div class="row g-2 align-items-end">
                    <div class="col-md-3">
                        <label class="form-label fw-semibold mb-1">Cari</label>
                        <input type="text" name="search" class="form-control"
                            placeholder="Nomor invoice / pelanggan..." value="{{ request('search') }}">
                    </div>
                    <div class="col-md-2">
                        <label class="form-label fw-semibold mb-1">Status</label>
                        <select name="status" class="form-select">
                            <option value="">Semua Status</option>
                            <option value="unpaid" {{ request('status') == 'unpaid' ? 'selected' : '' }}>Belum Dibayar</option>
                            <option value="paid" {{ request('status') == 'paid' ? 'selected' : '' }}>Lunas</option>
                            <option value="overdue" {{ request('status') == 'overdue' ? 'selected' : '' }}>Jatuh Tempo</option>
                            <option value="cancelled" {{ request('status') == 'cancelled' ? 'selected' : '' }}>Dibatalkan</option>
                        </select>
                    </div>
                    <div class="col-md-2">
                        <label class="form-label fw-semibold mb-1">Bulan</label>
                        <select name="month" class="form-select">
                            <option value="">Semua Bulan</option>
                            @for($m = 1; $m <= 12; $m++)
                                <option value="{{ $m }}" {{ request('month') == $m ? 'selected' : '' }}>
                                    {{ \Carbon\Carbon::create()->month($m)->translatedFormat('F') }}
                                </option>
                            @endfor
                        </select>
                    </div>
                    <div class="col-md-2">
                        <label class="form-label fw-semibold mb-1">Tahun</label>
                        <input type="number" name="year" class="form-control"
                            placeholder="{{ date('Y') }}" value="{{ request('year') }}" min="2020" max="{{ date('Y') + 1 }}">
                    </div>
                    <div class="col-md-3 d-flex gap-2">
                        <button type="submit" class="btn btn-primary flex-fill">
                            <i class="bi bi-search"></i> Cari
                        </button>
                        <a href="{{ route('invoices.index') }}" class="btn btn-outline-secondary">
                            <i class="bi bi-x"></i>
                        </a>
                    </div>
                </div>
            </form>
        </div>
    </div>

    <div class="card shadow-sm">
        <div class="card-body p-0">
            <div class="table-responsive">
                <table class="table table-hover align-middle mb-0">
                    <thead class="table-light">
                        <tr>
                            <th class="ps-3">No</th>
                            <th>No. Invoice</th>
                            <th>Pelanggan</th>
                            <th>Paket</th>
                            <th>Periode</th>
                            <th>Total</th>
                            <th>Jatuh Tempo</th>
                            <th>Status</th>
                            <th class="text-center">Aksi</th>
                        </tr>
                    </thead>
                    <tbody>
                        @forelse($invoices as $index => $invoice)
                            <tr>
                                <td class="ps-3">{{ $invoices->firstItem() + $index }}</td>
                                <td>
                                    <a href="{{ route('invoices.show', $invoice) }}" class="fw-semibold text-decoration-none">
                                        {{ $invoice->invoice_number }}
                                    </a>
                                </td>
                                <td>
                                    <div class="fw-semibold">{{ $invoice->customer->name ?? '-' }}</div>
                                    <small class="text-muted">{{ $invoice->customer->customer_code ?? '-' }}</small>
                                </td>
                                <td>{{ $invoice->subscription->package->name ?? '-' }}</td>
                                <td>
                                    @if($invoice->billing_month && $invoice->billing_year)
                                        {{ \Carbon\Carbon::create($invoice->billing_year, $invoice->billing_month)->translatedFormat('F Y') }}
                                    @else
                                        -
                                    @endif
                                </td>
                                <td>Rp {{ number_format($invoice->total_amount, 0, ',', '.') }}</td>
                                <td>
                                    @if($invoice->due_date)
                                        <span class="{{ $invoice->status === 'overdue' ? 'text-danger fw-semibold' : '' }}">
                                            {{ \Carbon\Carbon::parse($invoice->due_date)->format('d/m/Y') }}
                                        </span>
                                    @else
                                        -
                                    @endif
                                </td>
                                <td>
                                    @php
                                        $statusMap = [
                                            'unpaid'    => ['bg-warning text-dark', 'Belum Dibayar'],
                                            'paid'      => ['bg-success', 'Lunas'],
                                            'overdue'   => ['bg-danger', 'Jatuh Tempo'],
                                            'cancelled' => ['bg-secondary', 'Dibatalkan'],
                                        ];
                                        [$badgeClass, $badgeLabel] = $statusMap[$invoice->status] ?? ['bg-secondary', ucfirst($invoice->status)];
                                    @endphp
                                    <span class="badge {{ $badgeClass }}">{{ $badgeLabel }}</span>
                                </td>
                                <td class="text-center">
                                    <div class="d-flex justify-content-center gap-1">
                                        <a href="{{ route('invoices.show', $invoice) }}" class="btn btn-sm btn-outline-info" title="Lihat">
                                            <i class="bi bi-eye"></i>
                                        </a>
                                        <a href="{{ route('invoices.edit', $invoice) }}" class="btn btn-sm btn-outline-primary" title="Edit">
                                            <i class="bi bi-pencil"></i>
                                        </a>
                                        @if(in_array($invoice->status, ['unpaid', 'overdue']))
                                            <a href="{{ route('payments.create', ['invoice_id' => $invoice->id]) }}"
                                                class="btn btn-sm btn-outline-success" title="Catat Pembayaran">
                                                <i class="bi bi-cash-coin"></i>
                                            </a>
                                        @endif
                                        <form action="{{ route('invoices.destroy', $invoice) }}" method="POST" class="d-inline">
                                            @csrf
                                            @method('DELETE')
                                            <button type="submit" class="btn btn-sm btn-outline-danger" title="Hapus"
                                                onclick="return confirm('Hapus tagihan ini?')">
                                                <i class="bi bi-trash"></i>
                                            </button>
                                        </form>
                                    </div>
                                </td>
                            </tr>
                        @empty
                            <tr>
                                <td colspan="9" class="text-center py-5 text-muted">
                                    <i class="bi bi-inbox fs-1 d-block mb-2"></i>
                                    Belum ada data tagihan.
                                </td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>
        @if($invoices->hasPages())
            <div class="card-footer">
                {{ $invoices->appends(request()->query())->links() }}
            </div>
        @endif
    </div>
</div>

{{-- Modal Generate Otomatis --}}
<div class="modal fade" id="modalAutoGenerate" tabindex="-1" aria-labelledby="modalAutoGenerateLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <form action="{{ route('invoices.run-auto-generate') }}" method="POST">
                @csrf
                <div class="modal-header">
                    <h5 class="modal-title" id="modalAutoGenerateLabel">
                        <i class="bi bi-robot me-2 text-success"></i>Generate Tagihan Otomatis
                    </h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <div class="modal-body">
                    <div class="alert alert-info d-flex gap-2 align-items-start" style="border-radius:10px;font-size:0.85rem;">
                        <i class="bi bi-info-circle-fill mt-1 flex-shrink-0"></i>
                        <div>
                            Menggunakan pengaturan tagihan otomatis:<br>
                            <strong>Tanggal generate:</strong> setiap tanggal <strong>{{ $invoiceGenerateDay }}</strong> &nbsp;|&nbsp;
                            <strong>Jatuh tempo:</strong> tanggal <strong>{{ $invoiceDueDay }}</strong> setiap bulan.
                        </div>
                    </div>
                    <p class="text-muted small mb-3">Generate tagihan untuk semua pelanggan aktif berdasarkan pengaturan yang sudah dikonfigurasi. Tagihan yang sudah ada tidak akan diduplikasi.</p>
                    <div class="row g-3">
                        <div class="col-6">
                            <label class="form-label fw-semibold">Bulan</label>
                            <select class="form-select" name="month">
                                @for($m = 1; $m <= 12; $m++)
                                    <option value="{{ $m }}" {{ date('n') == $m ? 'selected' : '' }}>
                                        {{ \Carbon\Carbon::create()->month($m)->translatedFormat('F') }}
                                    </option>
                                @endfor
                            </select>
                        </div>
                        <div class="col-6">
                            <label class="form-label fw-semibold">Tahun</label>
                            <input type="number" class="form-control" name="year"
                                value="{{ date('Y') }}" min="2020" max="{{ date('Y') + 1 }}">
                        </div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Batal</button>
                    <button type="submit" class="btn btn-success"
                        onclick="return confirm('Jalankan generate tagihan otomatis sekarang?')">
                        <i class="bi bi-robot me-1"></i> Jalankan Sekarang
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>

{{-- Modal Generate Massal --}}
<div class="modal fade" id="modalGenerateBulk" tabindex="-1" aria-labelledby="modalGenerateBulkLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <form action="{{ route('invoices.generate-bulk') }}" method="POST">
                @csrf
                <div class="modal-header">
                    <h5 class="modal-title" id="modalGenerateBulkLabel">
                        <i class="bi bi-lightning me-2 text-warning"></i>Generate Tagihan Massal
                    </h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <div class="modal-body">
                    <p class="text-muted small mb-3">Buat tagihan untuk semua pelanggan aktif sekaligus berdasarkan bulan dan tahun yang dipilih.</p>
                    <div class="mb-3">
                        <label for="bulk_month" class="form-label fw-semibold">Bulan <span class="text-danger">*</span></label>
                        <select class="form-select" id="bulk_month" name="billing_month" required>
                            @for($m = 1; $m <= 12; $m++)
                                <option value="{{ $m }}" {{ date('n') == $m ? 'selected' : '' }}>
                                    {{ \Carbon\Carbon::create()->month($m)->translatedFormat('F') }}
                                </option>
                            @endfor
                        </select>
                    </div>
                    <div class="mb-3">
                        <label for="bulk_year" class="form-label fw-semibold">Tahun <span class="text-danger">*</span></label>
                        <input type="number" class="form-control" id="bulk_year" name="billing_year"
                            value="{{ date('Y') }}" min="2020" max="{{ date('Y') + 1 }}" required>
                    </div>
                    <div class="mb-3">
                        <label for="bulk_due_day" class="form-label fw-semibold">Jatuh Tempo Hari ke-</label>
                        <div class="input-group">
                            <input type="number" class="form-control" id="bulk_due_day" name="due_days"
                                value="{{ $invoiceDueDay }}" min="1" max="31">
                            <span class="input-group-text">setiap bulan</span>
                        </div>
                        <small class="text-muted">Default dari pengaturan: tanggal <strong>{{ $invoiceDueDay }}</strong>. Kosongkan untuk menggunakan pengaturan.</small>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Batal</button>
                    <button type="submit" class="btn btn-warning"
                        onclick="return confirm('Lanjutkan generate tagihan massal?')">
                        <i class="bi bi-lightning me-1"></i> Generate Sekarang
                    </button>
                </div>
            </form>
        </div>
    </div>
</div>
@endsection